<table class="texreg" style="margin: 10px auto;border-collapse: collapse;border-spacing: 0px;caption-side: bottom;color: #000000;border-top: 2px solid #000000;">
<caption>Statistical models</caption>
<thead>
<tr>
<th style="padding-left: 5px;padding-right: 5px;">&nbsp;</th>
<th style="padding-left: 5px;padding-right: 5px;">Model 1</th>
<th style="padding-left: 5px;padding-right: 5px;">Model 2</th>
<th style="padding-left: 5px;padding-right: 5px;">Model 3</th>
</tr>
</thead>
<tbody>
<tr style="border-top: 1px solid #000000;">
<td style="padding-left: 5px;padding-right: 5px;">(Intercept)</td>
<td style="padding-left: 5px;padding-right: 5px;">2.54<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">2.31<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">2.26<sup>&#42;&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.35)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.62)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.61)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">gen</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.09</td>
<td style="padding-left: 5px;padding-right: 5px;">0.05</td>
<td style="padding-left: 5px;padding-right: 5px;">0.04</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.26)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.35)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.34)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">age</td>
<td style="padding-left: 5px;padding-right: 5px;">0.44</td>
<td style="padding-left: 5px;padding-right: 5px;">0.02</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.14</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.27)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.36)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.36)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">edu</td>
<td style="padding-left: 5px;padding-right: 5px;">0.06</td>
<td style="padding-left: 5px;padding-right: 5px;">0.03</td>
<td style="padding-left: 5px;padding-right: 5px;">0.12</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.26)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.35)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.34)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">com</td>
<td style="padding-left: 5px;padding-right: 5px;">1.45<sup>&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.56</td>
<td style="padding-left: 5px;padding-right: 5px;">0.49</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.78)</td>
<td style="padding-left: 5px;padding-right: 5px;">(1.09)</td>
<td style="padding-left: 5px;padding-right: 5px;">(1.08)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">cot</td>
<td style="padding-left: 5px;padding-right: 5px;">-1.03</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.61</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.77</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.64)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.89)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.87)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">comena</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.73</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.60</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.50</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.67)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.86)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.84)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">RelSv</td>
<td style="padding-left: 5px;padding-right: 5px;">0.01</td>
<td style="padding-left: 5px;padding-right: 5px;">0.07</td>
<td style="padding-left: 5px;padding-right: 5px;">0.16</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.13)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.18)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.17)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">RelDn</td>
<td style="padding-left: 5px;padding-right: 5px;">2.81<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">2.10<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">2.32<sup>&#42;&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.41)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.56)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.54)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">netCN</td>
<td style="padding-left: 5px;padding-right: 5px;">0.24<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.20<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.21<sup>&#42;&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.06)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.07)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.07)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">com:RelSv</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.03</td>
<td style="padding-left: 5px;padding-right: 5px;">0.03</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.08</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.25)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.38)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.38)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">cot:RelSv</td>
<td style="padding-left: 5px;padding-right: 5px;">0.71<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.51</td>
<td style="padding-left: 5px;padding-right: 5px;">0.40</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.26)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.42)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.41)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">comena:RelSv</td>
<td style="padding-left: 5px;padding-right: 5px;">0.50<sup>&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.24</td>
<td style="padding-left: 5px;padding-right: 5px;">0.16</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.29)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.33)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.33)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">SocMe</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.07</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.08</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.13)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.12)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">IMEP_net</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">0.98<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.18)</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">IMEP_ptn</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">1.52<sup>&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.63)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">IMEP_parTRUE</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">1.92<sup>&#42;&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.58)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">IMEP_friTRUE</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">1.49<sup>&#42;&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.47)</td>
</tr>
<tr style="border-top: 1px solid #000000;">
<td style="padding-left: 5px;padding-right: 5px;">R<sup>2</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.37</td>
<td style="padding-left: 5px;padding-right: 5px;">0.45</td>
<td style="padding-left: 5px;padding-right: 5px;">0.46</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">Adj. R<sup>2</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.35</td>
<td style="padding-left: 5px;padding-right: 5px;">0.41</td>
<td style="padding-left: 5px;padding-right: 5px;">0.42</td>
</tr>
<tr style="border-bottom: 2px solid #000000;">
<td style="padding-left: 5px;padding-right: 5px;">Num. obs.</td>
<td style="padding-left: 5px;padding-right: 5px;">422</td>
<td style="padding-left: 5px;padding-right: 5px;">224</td>
<td style="padding-left: 5px;padding-right: 5px;">233</td>
</tr>
</tbody>
<tfoot>
<tr>
<td style="font-size: 0.8em;" colspan="4"><sup>&#42;&#42;&#42;</sup>p &lt; 0.01; <sup>&#42;&#42;</sup>p &lt; 0.05; <sup>&#42;</sup>p &lt; 0.1</td>
</tr>
</tfoot>
</table>

